TABLE 3.
Products synthesized by BacB2-A
| Product | Parent ion (m/z) |
MS/MS ion fragment (m/z)a
: |
||||
|---|---|---|---|---|---|---|
| Calculated | Detected | 1 | 2 | 3 | 4 | |
| d-Lys-Gly | 204.1348 | 204.1352 | 84.0814 | ND | 129.1030 | 74.0268 |
| d-Lys-d-Ala | 218.1505 | 218.1507 | 84.0815 | 116.0360 | 129.1027 | 88.0403 |
| d-Lys-d-Val | 246.1818 | 246.1817 | 84.0811 | 144.0621 | 129.1025 | 116.0713 |
| d-Lys-d-Leu | 260.1974 | 260.1974 | 84.0815 | 158.0828 | 129.1025 | 130.0858 |
| d-Lys-d-Ile | 260.1974 | 260.1974 | 84.0812 | ND | 129.1031 | 130.0863 |
| d-Lys-d-Ser | 234.1454 | 234.1444 | 84.0814 | 132.0218 | 129.1023 | 104.0391 |
| d-Lys-d-Thr | 248.161 | 248.1612 | 84.0815 | 146.0462 | 129.1028 | 118.0549 |
| d-Lys-d-Cys | 250.1225 | 250.1228 | 84.0824 | 147.9908 | 129.1015 | 120.0120 |
| d-Lys-d-Met | 278.1538 | 278.1542 | 84.0814 | 176.0419 | 129.1028 | 148.0455 |
| d-Lys-d-Pro | 244.1661 | 244.1660 | 84.0812 | 142.0518 | 129.1027 | 114.0555 |
| d-Lys-d-Asn | 261.1563 | 261.1563 | 84.0816 | 159.0387 | 129.1031 | 131.0510 |
| d-Lys-d-Gln | 275.1719 | 275.1719 | 84.0810 | 173.0522 | 129.1024 | ND |
| d-Lys-d-Asp | 262.1403 | 262.1405 | 84.0811 | ND | 129.1029 | 132.0318 |
| d-Lys-d-Glu | 276.1559 | 276.1559 | 84.0814 | ND | 129.1028 | 146.0456 |
| d-Lys-d-Arg | 303.2145 | 152.0876b | 84.0815 | 230.1219 | 129.1030 | 173.1073 |
| d-Lys-d-His | 284.1723 | 284.1728 | 84.0805 | 182.0543 | 129.1041 | 154.0724 |
| d-Lys-d-Phe | 294.1818 | 294.1820 | 84.0813 | 192.0709 | 129.1027 | 164.0713 |
| d-Lys-d-Tyr | 310.1767 | 310.1769 | 84.0818 | 208.0622 | 129.1024 | 180.0598 |
| d-Lys-d-Trp | 333.1927 | 333.1928 | 84.0814 | 231.0796 | 129.1025 | 203.0820 |
a
MS/MS fragments are depicted in Fig. 5. ND, not detected.
b
[M + 2H]2+ was detected.